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Issue 81, 2020
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Organic 2,5-dihydroxy-1,4-benzoquinone potassium salt with ultrahigh initial coulombic efficiency for potassium-ion batteries

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Abstract

Here, we propose a new organic 2,5-dihydroxy-1,4-benzoquinone potassium salt (K2C6H2O4) endowing an ultrahigh initial coulombic efficiency of 96% as an advanced anode for potassium-ion batteries. Theoretical calculations and experimental results suggest that K+ can reversibly insert into this organic compound due to the flexible and stable structure of the K2C6H2O4 molecule as well as fast K+ kinetics in the selected dimethyl ether-based electrolyte.

Graphical abstract: Organic 2,5-dihydroxy-1,4-benzoquinone potassium salt with ultrahigh initial coulombic efficiency for potassium-ion batteries

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Submitted
01 Aug 2020
Accepted
28 Aug 2020
First published
31 Aug 2020

Chem. Commun., 2020,56, 12234-12237
Article type
Communication

Organic 2,5-dihydroxy-1,4-benzoquinone potassium salt with ultrahigh initial coulombic efficiency for potassium-ion batteries

Q. Deng, C. Tian, Z. Luo, Y. Zhou, B. Gou, H. Liu, Y. Ding and R. Yang, Chem. Commun., 2020, 56, 12234
DOI: 10.1039/D0CC05248E

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